Reservoir leakage detection device and reservoir leakage range and leakage speed detection method

Abstract

The invention relates to the technical field of reservoir seepage detection, and discloses a reservoir seepage detection device and a reservoir seepage range and seepage speed detection method. The detection device comprises a frame, a positioning assembly and a detection assembly. The positioning assembly and the plurality of detection units are arranged on the frame, each detection unit comprises a shell, a detection channel, a blocking piece, a first color developing pigment, a second color developing pigment and a storage bin, the detection channel is arranged on the shell and penetrates through the top surface and the bottom surface of the shell, a water inlet of the detection channel is provided with the blocking piece, and the storage bin is communicated with the detection channel; the corresponding position of the detection unit leaks, the first color developing pigment is dissolved in water in the storage bin to present a first color, and the second color developing pigment flows out of the detection channel; the corresponding position of the detection unit does not leak, and the first color developing pigment and the second color developing pigment are dissolved in water and then present a third color in the storage bin. The reservoir leakage detection device is simple in structure, convenient to operate, low in cost and capable of accurately judging the leakage position and the relative leakage speed in real time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of reservoir seepage detection, and particularly relates to a reservoir seepage detection device and a reservoir seepage range and seepage speed detection method. BACKGROUND

[0002] Reservoir seepage refers to the phenomenon that, after a reservoir is filled with water, the reservoir water seeps along the pores, fissures, faults and karst caves of rocks to the valleys and lowlands outside the watershed of the reservoir bank. At present, reservoir seepage detection technologies mainly include the following several categories: geophysical methods, tracer methods, hydrodynamic model analysis, remote sensing technologies and distributed optical fiber sensing.

[0003] The geophysical method is to locate the seepage channel by analyzing the physical property differences (such as resistivity and wave velocity) of the underground medium. However, this method is easily affected by the complex geological conditions (such as fissures and interlayers) around the reservoir, has low resolution and high misjudgment rate.

[0004] The tracer method is to inject tracers (such as fluorescent dyes, isotopes and chemical salts) into the seepage area, and to deduce the seepage path and seepage flow by monitoring the concentration downstream. This method has high resolution, but relies on manual monitoring point layout, has a long monitoring period and cannot realize real-time monitoring. In addition, the use of tracers is costly and has the risk of polluting the environment.

[0005] The hydrodynamic model analysis method is to calculate the seepage flow based on the seepage field simulation or the seepage pressure gauge data. However, this method relies on accurate geological parameters, but it is difficult to accurately obtain the topography and geological parameters of the actual reservoir, which may lead to large errors in the analysis results.

[0006] The remote sensing technology is to identify the water temperature abnormal area through thermal infrared remote sensing and indirectly infer the seepage point. However, this method has low resolution and is suitable for screening large-area seepage, but is difficult to detect small seepage. Moreover, it is greatly affected by weather and light conditions.

[0007] The distributed optical fiber sensing technology is to monitor the local thermal field or stress field anomalies caused by seepage by using the temperature / strain changes of the optical fiber. Although it can realize long-distance continuous monitoring, the installation and maintenance cost is high and the implementation is difficult.

[0008] It can be seen that the existing reservoir seepage detection technologies cannot take into account the factors of detection accuracy, accuracy, monitoring period, construction difficulty and economy.

[0009] In summary, the existing technologies are difficult to simultaneously realize low-cost deployment, large-area synchronous monitoring, seepage point visualized accurate positioning and semi-quantitative evaluation of relative seepage speed on a single device. SUMMARY

[0010] Therefore, the reservoir leakage detection device and the reservoir leakage range and leakage speed detection method are provided to solve the problem that the reservoir leakage detection technology in the prior art cannot simultaneously consider high detection accuracy, real-time monitoring, low construction difficulty and low cost.

[0011] In a first aspect, the present application provides a reservoir leakage detection device, comprising:

[0012] a frame, which is arranged at the bottom of the reservoir;

[0013] a positioning assembly, which is arranged on the frame;

[0014] a detection assembly, which comprises a plurality of detection units arranged at intervals on the frame, and each detection unit comprises a shell, a detection channel, a blocking piece, a first color-developing pigment, a second color-developing pigment and a storage bin, the detection channel is arranged in the shell and penetrates the top surface and the bottom surface of the shell, the water inlet on the top surface of the shell is detachably provided with the blocking piece, the storage bin is arranged in the shell and communicates with the detection channel, the first color-developing pigment is arranged in the storage bin, the second color-developing pigment is arranged in the detection channel and is arranged at a position higher than that of the first color-developing pigment, and the first color-developing pigment and the second color-developing pigment have a density greater than water after being dissolved in water;

[0015] when leakage occurs at the position corresponding to the detection unit, water flows into the detection channel, the first color-developing pigment is dissolved in water in the storage bin to present a first color, and the second color-developing pigment is dissolved in water to present a second color and flows out of the detection channel with the water flow;

[0016] when no leakage occurs at the position corresponding to the detection unit, water flows into the detection channel, the first color-developing pigment and the second color-developing pigment are mixed in the storage bin after being dissolved in water and present a third color.

[0017] Advantages

[0018] The reservoir leakage detection device is placed at the bottom of the reservoir, and water flows into the detection channel through the water inlet. The first color-developing pigment and the second color-developing pigment are both soluble in water. If the corresponding position of the detection unit leaks, a smooth water flow path is formed in the detection channel. In this case, the first color-developing pigment remains in the storage bin after being dissolved in water, but the second color-developing pigment is discharged from the detection channel after being dissolved in water. If the corresponding position of the detection unit does not leak, a smooth water flow path is not formed in the detection channel. In this case, the second color-developing pigment cannot be discharged from the detection channel after being dissolved in water, but sinks to the storage bin due to its higher density than water, and then combines with the first color-developing pigment dissolved in water. In this way, whether the corresponding position leaks can be determined by observing whether the detection unit displays the first color or the third color. Moreover, the relative leakage speed of the corresponding position can be determined by the dissipation speed of the second color display area in different detection units.

[0019] The reservoir leakage detection device has the advantages of simple structure, convenient operation, low manufacturing and using cost, and accurate and real-time judgment of the leakage position and the relative leakage speed.

[0020] In an optional embodiment, the reservoir leakage detection device further comprises an underwater camera device configured to capture the color-developing state of each detection unit.

[0021] Advantages

[0022] The color-developing state of each detection unit is captured by the underwater camera device, which facilitates the acquisition of color-developing state information of the detection unit and the judgment of the leakage position and the relative leakage speed.

[0023] In an optional embodiment, the detection channel comprises a first straight pipe section, a first elbow pipe section, a second elbow pipe section, and a second straight pipe section connected in sequence. The first straight pipe section has one end away from the first elbow pipe section as the water inlet. The second straight pipe section has one end away from the second elbow pipe section as the water outlet. The second elbow pipe section is located above the first elbow pipe section. The storage bin is in communication with the lowest point of the first elbow pipe section.

[0024] Advantages

[0025] The tortuous detection channel can prolong the water flow path, increase the time of dissolving with the color-developing pigment, and accurately determine the leakage position through the color-developing state.

[0026] In an optional embodiment, the second color-developing pigment is arranged in the first elbow pipe section near the second straight pipe section, or in the second elbow pipe section near the first straight pipe section.

[0027] Advantages

[0028] The second color-developing pigment can be mixed with the first color-developing pigment in the storage bin after being dissolved in water, and the color change is smooth when no leakage occurs.

[0029] In an alternative embodiment, the blocking members of the plurality of detection units are connected to each other.

[0030] Advantages

[0031] The blocking members of all detection units are connected together, which can be pulled out at one time, and the operation is more convenient.

[0032] In an alternative embodiment, the shell is a transparent shell.

[0033] Advantages

[0034] The transparent shell is more convenient for observing the color-developing state of the detection unit from the outside.

[0035] In an alternative embodiment, the top surface of the shell is provided with a nameplate.

[0036] Advantages

[0037] The nameplate is provided, which is convenient for accurately distinguishing and positioning each detection unit.

[0038] In an alternative embodiment, the positioning assembly comprises four positioning devices, and the four positioning devices are respectively arranged at the corners of the frame.

[0039] In an alternative embodiment, the frame is a flexible frame.

[0040] Advantages

[0041] The flexible frame can adapt to the terrain with ups and downs and closely match the bottom of the reservoir.

[0042] In a second aspect, the present application further provides a reservoir leakage range and leakage speed detection method, which is applied to the reservoir leakage detection device and comprises the following steps:

[0043] The reservoir leakage detection device is arranged in the approximate area of reservoir leakage;

[0044] The blocking members of all detection units are removed;

[0045] The color-developing state of each detection unit is recorded at uniform time intervals until the color no longer changes;

[0046] If the detection unit finally displays the third color, it indicates that no leakage occurs at the position corresponding to the detection unit.

[0047] If the detection unit finally displays the first color, the corresponding position of the detection unit has a leakage, and the reduction speed of the second color display area in the detection unit during the recording period is proportional to the leakage speed of the position.

[0048] Advantages

[0049] The leakage position can be determined by observing the final color display state of each detection unit, and the leakage speed between the detection units can also be determined by observing the reduction speed of the second color display area in the detection unit during the detection process. This detection method can accurately determine the reservoir leakage position in real time.

[0050] Advantages

[0051] The reduction rate of the second color coverage area in the detection unit per unit time is in good linear positive correlation with the water flow rate through the detection unit, so the relative leakage speed of different positions can be determined accordingly. BRIEF DESCRIPTION OF DRAWINGS

[0052] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0053] Figure 1 It is a schematic diagram of the reservoir leakage detection device of the present application;

[0054] Figure 2 It is a schematic diagram of the detection unit in the reservoir leakage detection device of the present application;

[0055] Figure 3 It is a sectional view of the detection unit in the reservoir leakage detection device of the present application;

[0056] Figure 4 It is a flow chart of the reservoir leakage range and leakage speed detection method of the present application.

[0057] Explanation of reference signs:

[0058] 1, frame;

[0059] 21, positioning device;

[0060] 31, detection unit, 311, shell, 312, detection channel, 313, sealing element, 314, first color developing pigment, 315, second color developing pigment, 316, storage bin, 317, nameplate. DETAILED DESCRIPTION

[0061] The technical solutions of the present application will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0062] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0063] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0064] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict between them.

[0065] The embodiments of the present application will be described below in combination with Figures 1 to 4 .

[0066] According to the embodiment of the present application, in one aspect, a reservoir leakage detection device is provided, which comprises a frame 1, a positioning assembly and a detection assembly. The frame 1 is arranged at the bottom of the reservoir. The positioning assembly is arranged on the frame 1. The detection assembly comprises a plurality of detection units 31, which are arranged on the frame 1 at intervals. Each detection unit 31 comprises a shell 311, a detection channel 312, a blocking member 313, a first color-developing pigment 314, a second color-developing pigment 315 and a storage bin 316. The detection channel 312 is arranged in the shell 311 and penetrates the top surface and the bottom surface of the shell 311. The water inlet on the top surface of the shell 311 is detachably provided with the blocking member 313. The storage bin 316 is arranged in the shell 311 and communicates with the detection channel 312. The first color-developing pigment 314 is arranged in the storage bin 316. The second color-developing pigment 315 is arranged in the detection channel 312 and is arranged at a position higher than that of the first color-developing pigment 314. The first color-developing pigment 314 and the second color-developing pigment 315 have a density greater than that of water after being dissolved in water. When leakage occurs at the position corresponding to the detection unit 31, water flows into the detection channel 312. The first color-developing pigment 314 is dissolved in water in the storage bin 316 to present a first color. The second color-developing pigment 315 is dissolved in water to present a second color and flows out of the detection channel 312 with the water flow. When no leakage occurs at the position corresponding to the detection unit 31, water flows into the detection channel 312. The first color-developing pigment 314 and the second color-developing pigment 315 are mixed in the storage bin 316 after being dissolved in water and present a third color.

[0067] When it is necessary to detect the leakage position of the reservoir, the reservoir leakage detection device can be directly placed in the reservoir, and the frame 1 directly lands on the bottom of the reservoir. The frame 1 is in the shape of a square box and serves as a carrier for the positioning assembly and the detection assembly. The positioning assembly can position the reservoir leakage detection device at a precise position in the reservoir. The detection work of the reservoir leakage is mainly realized by the detection assembly, which comprises a plurality of detection units 31 and is distributed on the frame 1. The detection units 31 are usually arranged in an array in rows and columns to uniformly divide the frame 1 into a plurality of detection areas. Each detection unit 31 can independently detect, which can accurately detect the leakage condition of each detection area.

[0068] Specifically, the detection unit 31 comprises a shell 311, a detection channel 312, a blocking piece 313, a first color-developing pigment 314, a second color-developing pigment 315 and a storage bin 316. The shell 311 is a regular cuboid. The detection channel 312 is arranged in the shell 311 for water flow, with an inlet at the top surface of the shell 311 and an outlet at the bottom surface of the shell 311. The specific shape of the detection channel 312 is not limited. The inlet of the detection channel 312 is provided with the blocking piece 313, which is blocked during the process of lowering the frame to the bottom of the reservoir and is pulled out for detection. The first color-developing pigment 314 and the second color-developing pigment 315 are both soluble in water and have a density greater than water after being dissolved in water. The first color-developing pigment 314 is arranged in the storage bin 316, which is in communication with the detection channel 312, so that the water flow can enter the storage bin 316, and the first color-developing pigment 314 in the storage bin 316 presents a first color after being dissolved in water. The second color-developing pigment 315 is arranged in the detection channel 312 and presents a second color after being dissolved in water. The first color-developing pigment 314, the second color-developing pigment 315 and water together present a third color after being mixed.

[0069] Further, in the embodiment, the first color-developing pigment 314 is copper sulfate (CuSO4), which presents a bright blue color (first color) in aqueous solution. Copper sulfate is easily soluble in water, the solution has a density greater than water, and is stable in nature and low in cost. The second color-developing pigment 315 is iron chloride (FeCl3). Its aqueous solution presents a brownish yellow color (second color). Iron chloride is easily soluble in water, and the solution also has a density greater than water. After mixing the copper sulfate solution (blue) and the iron chloride solution (brownish yellow), a green or dark green (third color) precipitate or solution is generated. The color change is very obvious and easy to observe and distinguish underwater.

[0070] In another embodiment, the first color-developing pigment 314 is potassium permanganate (KMnO4), which presents a purple red color (first color) in aqueous solution. The second color-developing pigment 315 is sodium sulfide (Na2S) solution. Its aqueous solution is colorless or slightly yellow, and the sodium sulfide solution and the potassium permanganate solution will undergo an oxidation-reduction reaction after mixing, generating a brown-black manganese dioxide (MnO2) precipitate (third color). The third color (brown-black) after mixing the second color-developing pigment and the first color-developing pigment is greatly different from the first color (purple red), and is also easy to observe.

[0071] When the detection unit corresponding position does not occur leakage, the reservoir bottom silt, sediment or reservoir bottom structure itself will form a natural blockage to the detection channel (312) water outlet, water flow can only be injected through the water inlet and fill the detection channel, but due to the inability to form outward seepage pressure difference, the water flow is relatively static state, so that the second color developing pigment (315) can be dissolved and settled due to the density greater than water, eventually mixed with the first color developing pigment (314) in the storage bin (316).

[0072] The detection of reservoir leakage state is mainly through the color developing state of the detection unit 31. When the frame body falls to the bottom of the reservoir, if the corresponding position of the detection unit 31 does not exist leakage, the water outlet of the detection channel 312 is blocked, and the water cannot be discharged after entering the detection channel 312. The water stays in the detection channel 312. The first color developing pigment 314 and the second color developing pigment 315 can both dissolve in water, but the second color developing pigment 315 has a density greater than water, so it will sink until it is mixed with the first color developing pigment 314, and finally the color developing state of the detection unit 31 is the third color. If the corresponding position of the detection unit 31 exists leakage, the detection channel 312 forms a passage, and the water flow enters the detection channel 312 from the water inlet and is discharged from the water outlet. The first color developing pigment 314 remains in the storage bin 316 after dissolving in water, and the second color developing pigment 315 is discharged from the water outlet after dissolving in water. When the second color developing pigment 315 is completely discharged, the color developing state of the detection unit 31 is finally the first color. By this method, it can be judged whether the corresponding detection area of each detection unit 31 has leakage, and the leakage area can be accurately delineated. And the second color developing pigment 315 needs a certain time to be discharged with the water flow, and the dissipation speed of the second color display area in each detection unit 31 within this period of time can also be observed, and the relative speed of the leakage speed can also be compared.

[0073] The reservoir leakage detection device can detect the leakage position of the reservoir and the relative leakage speed between the leakage positions. And it has the advantages of simple structure, convenient operation, accurate detection, low production and use cost, and can also detect in real time and quickly, and has many advantages.

[0074] In one embodiment, the frame 1 is a flexible frame 1.

[0075] Specifically, the frame 1 is made of flexible material, which is made of high molecular polymer plate or profile material (such as polypropylene PP, polyethylene PE) with certain flexibility. After falling to the bottom of the reservoir, its own material properties allow the frame 1 to elastically deform under the action of the reservoir bottom topography, so as to fit the undulating reservoir bottom, and the fitting degree is better.

[0076] Further, the framework 1 is connected by a plurality of rigid rod segments through a hinged manner to form a movable truss structure. The hinge points allow relative rotation between adjacent rod segments, so that the entire framework 1 can adapt to the ups and downs of the terrain.

[0077] In actual laying, the flexible framework 1 can naturally fit the contour of the reservoir bottom by relying on the gravity of the device itself, ensuring that the water outlet of each detection unit 31 can maintain good contact with the reservoir bottom surface, providing a basis for accurate detection.

[0078] In one embodiment, the positioning assembly includes four positioning devices 21, which are respectively arranged at the corners of the framework 1.

[0079] The four positioning devices 21 are correspondingly arranged at the four corners of the square framework 1. Specifically, the positioning device 21 is an underwater positioning instrument with a power supply, which includes underwater ultrasonic transmitting and receiving instruments, and can accurately position the position of the framework 1 under water on the water surface. Moreover, in combination with the size of the framework 1 and the arrangement interval of the detection units 31, the coordinates of each detection unit 31 can be accurately positioned.

[0080] In one embodiment, the shell 311 is a transparent shell.

[0081] The transparent shell 311 facilitates observation of the color change of the first color-developing pigment 314 and the second color-developing pigment 315 from the outside.

[0082] In one embodiment, the top surface of the shell 311 is provided with a nameplate 317.

[0083] After the nameplate 317 is arranged, each detection unit 31 can be numbered in a certain order, which is more convenient for distinguishing the detection units 31.

[0084] In one embodiment, the blocking members 313 in the plurality of detection units 31 are connected to each other.

[0085] The plurality of blocking members 313 are connected together, so that all the blocking members 313 can be pulled out at one time, preventing water flow from entering the detection channels 312 at different times and affecting the judgment of the detection results. Specifically, a connecting plate / bar can be used to bridge the blocking members 313 together.

[0086] In one embodiment, the detection channel 312 includes: a first straight pipe segment, a first elbow pipe segment, a second elbow pipe segment, and a second straight pipe segment that are sequentially connected, and the end of the first straight pipe segment away from the first elbow pipe segment is the water inlet, the end of the second straight pipe segment away from the second elbow pipe segment is the water outlet, the second elbow pipe segment is located above the first elbow pipe segment, and the storage bin 316 is in communication with the lowest point of the first elbow pipe segment.

[0087] As Figure 3As shown, the detection channel 312 is serpentine, with both the first and second bends being U-shaped, but the openings of the U-shapes of the first and second bends face upwards and downwards, respectively. A storage chamber 316 is located below the first bend, communicating with it to obtain water flow. The storage chamber 316 is situated below the lowest point of the first bend, ensuring that the first colorant 314, after dissolving in water, does not flow with the water.

[0088] The detection channel 312 of this shape can extend the water flow path, increase the time for the color pigment to dissolve in water, and also increase resistance, thus weakening the impact force of the water flow.

[0089] In one embodiment, the second color pigment 315 is disposed in the half of the first bend section near the second straight section, or in the half of the second bend section near the first straight section.

[0090] like Figure 3 As shown, the second color pigment 315 is disposed in the right half of the first bend section or the left half of the second straight section. In the absence of leakage, the second color pigment 315, after dissolving in water, can smoothly sink into the storage chamber 316 and mix with the second color pigment 315.

[0091] In one embodiment, the reservoir leakage detection device further includes an underwater camera device for capturing the color development status of multiple detection units 31.

[0092] Within a certain detection period, images of each detection unit 31 are captured at uniform time intervals to form images. By analyzing the color development state of the corresponding images of each detection unit 31, the leakage status can be determined. The underwater camera device can quickly and clearly acquire the color development state of the detection unit 31.

[0093] According to an embodiment of the present invention, another aspect provides a method for detecting the leakage range and leakage rate of a reservoir, which is applied to a reservoir leakage detection device. The reservoir leakage detection device will not be described in detail again.

[0094] The detection method includes the following steps:

[0095] Install the reservoir seepage detection device in the approximate area of ​​reservoir seepage;

[0096] In one example, the frame (1) is made of high-density polyethylene (HDPE) profiles connected by hot-melt bonding. It has a certain degree of flexibility and its size is 10m×10m. 100 detection units (31) are evenly arranged.

[0097] According to the evaporation speed, water level deformation speed, input and output water volume and other preliminary judgments during the operation of the reservoir, whether the reservoir has leakage is determined, and the approximate range of the leakage is preliminarily estimated based on the wide-area leakage detection method, such as the original buried seepage meter. The reservoir leakage detection device is placed to the bottom of the reservoir in the preliminary estimated leakage range. Then, according to the signal of the positioning device 21, the coordinate range of the reservoir leakage detection device in the reservoir is calculated and positioned, and the coordinates of each detection unit 31 are calculated.

[0098] Remove the blocking piece 313 of all detection units 31;

[0099] When the reservoir leakage detection device is lowered to the bottom of the reservoir, the blocking piece 313 on all detection units 31 is pulled out together, and the detection begins.

[0100] Record the color development state of each detection unit 31 at uniform time intervals until the color no longer changes;

[0101] If the total detection time is T, then every time t, the underwater camera device is used to take a photo of each detection unit 31 at a uniform speed along the trajectory, and the color development state of each detection unit 31 at different times is recorded. When the color in the detection unit 31 no longer changes, the shooting work is stopped.

[0102] If the detection unit 31 finally displays the third color, the corresponding position of the detection unit 31 has not occurred leakage;

[0103] According to the photographed images, each detection unit 31 is analyzed one by one. If the detection unit 31 finally displays the third color, i.e. the color presented after the first color developing pigment 314, the second color developing pigment 315 and water are mixed together, then the corresponding position of the detection unit 31 has not occurred leakage.

[0104] If the detection unit 31 finally displays the first color, the corresponding position of the detection unit 31 has occurred leakage, and the reduction speed of the second color display area in the detection unit 31 within the recording period is proportional to the leakage speed of the position.

[0105] In one example, through laboratory water tank simulation test, the area reduction rate of the second color (brown yellow) in the observation window is recorded under different seepage speeds. The data shows that within a certain seepage speed range, there is a significant linear positive correlation between the reduction rate and the seepage speed (correlation coefficient R 2 >0.95). Accordingly, through calibration, the device can not only determine whether there is leakage, but also realize the rapid comparison and evaluation of the relative leakage speed of different points.

[0106] According to the displayed image, if the detection unit 31 finally displays the first color, i.e. the color displayed after the first color developing pigment 314 dissolves in water and remains in the storage bin 316, it means that the corresponding position of the detection unit 31 has a leakage. Moreover, by judging the reduction speed of the second color display area observed in the detection unit 31 through the time series images, the leakage speed at this position can be determined. The faster the reduction speed, the faster the leakage speed. Accordingly, the relative speed of the leakage between different detection units 31 can be compared. Through the laboratory simulation seepage test, it is confirmed that under the determined detection channel structure and pigment characteristics, the reduction rate of the second color coverage area in the detection unit 31 per unit time has a good linear positive correlation with the water flow rate through the detection unit 31, so that the relative leakage speed of different detection units 31 can be determined accordingly.

[0107] By associating the leakage position and leakage speed determination results with the coordinates of each detection unit 31, the fine leakage range distribution and relative seepage speed partition of the corresponding detection area of the reservoir leakage detection device can be calculated.

[0108] In one example, the images taken by the underwater camera device are transmitted to the surface control ship through a cable, and each label card (317) is automatically recognized by image recognition software and its HSV color space value is analyzed, so as to automatically determine the leakage state and calculate the second color fading rate, and finally generate a reservoir bottom leakage distribution cloud chart and an analysis report.

[0109] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A reservoir seepage detection device, characterized in that, include: Frame (1), which is set at the bottom of the reservoir; A positioning component is disposed on the frame (1); The detection assembly includes multiple detection units (31) spaced apart from each other on the frame (1). Each detection unit (31) includes a housing (311), a detection channel (312), a sealing element (313), a first color-developing pigment (314), a second color-developing pigment (315), and a storage compartment (316). The detection channel (312) is disposed in the housing (311) and penetrates the top and bottom surfaces of the housing (311). The detection channel (312) is located within the housing (311). The top surface water inlet is detachably provided with the sealing component (313). The storage chamber (316) is disposed in the shell (311) and communicates with the detection channel (312). The first color developing pigment (314) is disposed in the storage chamber (316), and the second color developing pigment (315) is disposed in the detection channel (312). The second color developing pigment (315) is disposed at a higher position than the first color developing pigment (314). The density of the first color developing pigment (314) and the second color developing pigment (315) is greater than that of water after dissolving in water. When leakage occurs at the corresponding position of the detection unit (31), water flows into the detection channel (312), the first color pigment (314) dissolves in water in the storage chamber (316) to present the first color, the second color pigment (315) dissolves in water to present the second color, and flows out of the detection channel (312) with the water flow. When no leakage occurs at the corresponding position of the detection unit (31), water flows into the detection channel (312), and the first color pigment (314) and the second color pigment (315) dissolve in water and mix in the storage chamber (316) to present a third color.

2. The reservoir seepage detection device according to claim 1, characterized in that, It also includes an underwater camera device for capturing the color development status of the plurality of detection units (31).

3. The reservoir seepage detection device according to claim 1, characterized in that, The detection channel (312) includes: a first straight pipe section, a first bent pipe section, a second bent pipe section and a second straight pipe section connected in sequence, wherein the end of the first straight pipe section away from the first bent pipe section is the water inlet, the end of the second straight pipe section away from the second bent pipe section is the water outlet, the second bent pipe section is located above the first bent pipe section, and the storage chamber (316) is connected to the lowest point of the first bent pipe section.

4. The reservoir seepage detection device according to claim 3, characterized in that, The second color pigment (315) is disposed in the half of the first bend section near the second straight section, or in the half of the second bend section near the first straight section.

5. The reservoir seepage detection device according to claim 1, characterized in that, The sealing elements (313) in the plurality of detection units (31) are interconnected.

6. The reservoir seepage detection device according to claim 1, characterized in that, The housing (311) is a transparent housing (311).

7. The reservoir seepage detection device according to claim 1, characterized in that, A number plate (317) is provided on the top surface of the housing (311).

8. The reservoir seepage detection device according to claim 1, characterized in that, The positioning component includes four positioning devices (21), which are respectively located at the corners of the frame (1).

9. The reservoir seepage detection device according to claim 1, characterized in that, The frame (1) is a flexible frame (1).

10. A method for detecting the seepage range and seepage rate of a reservoir, applied to the reservoir seepage detection device according to any one of claims 1-9, characterized in that, include: Install the reservoir seepage detection device in the approximate area of ​​reservoir seepage; Remove the sealing parts (313) from all detection units (31); The color development state of each detection unit (31) is recorded at uniform time intervals until the color no longer changes; If the detection unit (31) is ultimately displayed as the third color, then no leakage has occurred at the corresponding position of the detection unit (31); If the detection unit (31) is ultimately displayed as the first color, then leakage occurs at the corresponding position of the detection unit (31), and the rate of decrease of the second color display area in the detection unit (31) during the recording period is proportional to the leakage rate at that position.

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